Dan,
The GPS capability of a smartphone has been difficult for me to get the straight scoop on. Here's what makes me scratch my head on this:
1. Is built-in smartphone GPS capability as accurate and reliable as it is in purpose-built GPS navigation devices - like Garmin Nuvi devices?
2. If smartphone GPS capability is really that good, then why don't smartphone usage instructions make a big deal out of having the smartphone placed with a line-of-sight view to the sky like the Garmin Nuvi instructions do?
3. When maps are in the correct smartphone operating system format, do smartphones come with - or even offer as an option - enough internal memory to store what my Garmin Nuvi now does - detailed maps of all of North America (i.e. I like my Garmin to be ready at all times for extended travel without cell tower access required.). Plus within my navigator unit's storage capacity can be held hundreds of thousands of custom points of interest ... I currently have nearly 700,000 in my Garmin unit. For instance, one of my stored custom POI databases contains every body of fresh water in the U.S. - even those that dry up in the summer.
